package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.pojo.Category;
import com.itheima.reggie.pojo.Dish;
import com.itheima.reggie.pojo.DishFlavor;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("分页查询菜品信息");
        //分页构造器
        Page<Dish> pageInfo = new Page<>(page,pageSize);
        Page<DishDto> dishDtoPage = new Page<>();
        //查询条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件，模糊匹配
        queryWrapper.like(name != null,Dish::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);
        //分页查询
        dishService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");
        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item)->{
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if(category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).toList();
        dishDtoPage.setRecords(list);
        return R.success(dishDtoPage);
    }

    /**
     * 新增菜品信息
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){    //RequestBody将前端传来的json数据转换为对象
        log.info("新增菜品信息:{}",dishDto.toString());
        dishService.saveWithFlavor(dishDto);
        return R.success(null);
    }

    /**
     * 根据id查询菜品信息和菜品口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> getById(@PathVariable Long id){
        log.info("根据id查询菜品信息和菜品口味信息:{}",id);
        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);
    }

    /**
     * 修改菜品信息
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        log.info("修改菜品信息:{}",dishDto.toString());
        dishService.updateWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    @PostMapping("/status/{i}")
    public R<String> updateStatus(@PathVariable Integer i, @RequestParam List<Long> ids){
        log.info("修改菜品状态:{}",ids);
        dishService.updateStatus(ids,i);
        return R.success("修改成功");
    }
    /*
    * 根据条件查询对应的菜品信息
    * @param dish
    * @return
    * */
    /*@GetMapping("/list")
    public R<List<Dish>> list(Dish dish){
        log.info("根据条件查询对应的菜品信息:{}",dish.toString());
        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId());
        //添加过滤条件，筛选状态为启售的菜品
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        //查询
        List<Dish> list = dishService.list(queryWrapper);


        return R.success(list);
    }*/

    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
        //添加条件，查询状态为1(起售状态)的菜品
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);
        List<DishDto> dishDtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            Long categoryId = item.getCategoryId();
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category != null){
                String categoryName = category.getName();
                    dishDto.setCategoryName(categoryName);
            }
            //当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(DishFlavor::getDishId, dishId);
            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);
            return dishDto;
        }).toList();

        return R.success(dishDtoList);
    }
}
